Container closure



FIG. 1 is a front elevational view of a container closure showing my new design;

FIG. 2 is a side elevational view thereof, the opposite view being a mirror image;

FIG.3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a top rear perspective view thereof.

The broken line showing of a container is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a container closure, as shown. 